Pressure Temperature Rating as per ASME B16.34

A 182 F 316- A 351 CF8M - A 351 CF3M

°C

Working pressure (bar) by classes

150

300

600

800

900

1500

2500

-29  -3819.049.699.3132.4148.9248.2413.7
9316.542.785.5114.1128.2213.4355.8
14914.838.677.2103.1115.8192.7321.3
20413.435.571.094.5106.2177.2295.1
26011.733.165.887.998.9164.8274.4
3169.731.062.483.193.4155.5259.2
3438.630.761.481.791.7153.1255.1
3717.629.659.679.389.3148.9248.2
3996.629.358.377.987.6145.5242.7
4275.528.657.276.285.8143.1238.6
4544.527.955.874.583.8140.0233.0
4823.427.254.572.481.4135.8226.1
5102.426.553.471.080.0133.1222.0
5381.425.250.066.975.2125.5208.9
5661.424.849.666.274.5124.1206.8
5931.422.444.559.366.5111.0185.1
6211.419.037.950.756.994.5157.5
6491.414.128.337.942.771.0118.2
6771.412.425.233.437.662.7104.5
7041.49.719.025.228.347.278.9
7321.47.214.119.021.435.559.3
7601.45.210.313.815.526.243.4
7881.44.17.910.712.120.033.4
8161.02.85.97.68.614.123.8

For welding end. Flanged end ratings terminate at 538°.

A 351 CF3M: not be used over 454°C